UINT
WdCompareMemory(
  IN  PUCHAR String1,
  IN  PUCHAR String2,
  IN  UINT Length
  );

Routine Description:

    Determines if two arrays of bytes are equal.

Arguments:

    String1, String2 - the two arrays to check.

    Length - the first length bytes to compare.

Return Value:

    0 if equal, -1 if not.